import re
from django.contrib.auth.backends import ModelBackend

from users.models import User


def jwt_response_payload_handler(token, user=None, request=None):
    """
    自定义jwt认证成功返回数据
    """
    return {
        'token': token,
        'user_id': user.id,
        'username': user.username
    }


def get_user_by_account(account):
    """根据用户输入的账号查询user"""
    try:
        if re.match(r"^1[3-9]\d{9}$", account):
            # "手机号登陆"
            user = User.objects.get(mobile=account)

        else:
            # "用户登陆"
            print(account)
            user = User.objects.get(username=account)
    except User.DoesNotExist:
        return None
    return user


class UsernameMobileAuthBackend(ModelBackend):
    """自定义实现手机号账号都登陆"""

    def authenticate(self, request, username=None, password=None, **kwargs):
        # 使用账号查询user对象
        user = get_user_by_account(username)

        # 如果user存在 使用user校验密码 如果密码校验成功 登陆响应user
        if user is not None and user.check_password(password):
            print(1)
            return user
